Java Vuser Script - Transaction aren't shown in BSM

hi experts!

I have simple "Java Vuser" script. After exporting it as a *.zip file i want to upload this to BSM 9.23 but the transaction(s) are not shown.

I'm using LR  11.52 with latest patch.

Here is my simple script.

import lrapi.lr;

public class Actions
{
    public int init() throws Exception{
        return 0;
    }
    public int action() throws Exception{
  
  
  lr.start_transaction("trans1");       
  lr.end_transaction("trans1",lr.PASS);
        return 0;
    }
    public int end() throws Exception{
        return 0;
    }
}

any ideas?

THX and Regards!"